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Measurement and Instrumentation

Measurement and Instrumentation
Standard resistor ia made from

Silver
Platinum
Nichrome
Manganin

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Measurement and Instrumentation
A megger is usually

Electro-static type instrument
Hot-wire type instrument
Moving iron type instrument
Moving coil type instrument

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Measurement and Instrumentation
A rectifier type instrument is connected to 100VDC and is operated in the DC measuring module reads

90V
111V
50V
100V

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Measurement and Instrumentation
A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is

 114.6 μH/radian.
 4.8 μH/radian.
 12.0 μH/radian.
 2.0 μH/radian.

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Measurement and Instrumentation
Which of following voltmeters would you use for measuring voltage across 20KΩ resistance

 Voltmeter having a resistance of 5 ΩK.
 Voltmeter having sensitivity of 1 KW/V.
 None of above.
  Voltmeter having sensitivity of 10 KW/V.

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Measurement and Instrumentation
The scale of a rectifier instrument is

None of the listed here
Linear
Non-linear
Either linear or non linear

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